US2024327954A1PendingUtilityA1

Aluminum alloy

61
Assignee: GF CASTING SOLUTIONS AGPriority: Mar 28, 2023Filed: Mar 27, 2024Published: Oct 3, 2024
Est. expiryMar 28, 2043(~16.7 yrs left)· nominal 20-yr term from priority
B33Y 70/00B22F 1/065C22C 21/18C22C 21/16C22C 21/14C22C 21/12C22C 21/003C22C 21/00B22F 2999/00B22F 2304/10B22F 2301/052B22F 1/05B22F 10/28C22C 1/0416
61
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Claims

Abstract

An aluminum alloy for additive manufacturing in a form of a powder including from 1 to 6% by weight of titanium, from 0.05 to 2% by weight of iron, and from 0.5 to 2.5% by weight of chromium. The aluminum alloy also includes, as a balance, aluminum and production-related impurities.

Claims

exact text as granted — not AI-modified
1 . An aluminum alloy for additive manufacturing in a form of a powder comprising:
 from 1 to 6% by weight of titanium;   from 0.05 to 2% by weight of iron;   from 0.5 to 2.5% by weight of chromium; and   as a balance, aluminum and production-related impurities.   
     
     
         2 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy comprises from 2 to 4.5% by weight of titanium. 
     
     
         3 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy comprises from 2.5 to 4% by weight of titanium. 
     
     
         4 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy comprises from 0.05 to 5% by weight of copper. 
     
     
         5 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy contains from 1.5 to 2.5% by weight of copper. 
     
     
         6 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy contains from 1 to 2% by weight of chromium. 
     
     
         7 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy contains from 0.1 to 1.5% by weight of iron. 
     
     
         8 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy comprises one or more elements of <0.3 weight % manganese, <0.5 weight % silicon, <0.5 weight % magnesium, and/or <0.5 weight % zinc, and wherein a total weight % of one or more of these elements is <1 weight %. 
     
     
         9 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy is free from scandium, zirconium and rare earth elements. 
     
     
         10 . The aluminum alloy according to  claim 1 , comprising spherical particles. 
     
     
         11 . The aluminum alloy according to  claim 1 , wherein the aluminum alloy has an increased yield strength YS 0.2 >300 MPa in an as-processed condition and an elongation at failure A >5%. 
     
     
         12 . The aluminum alloy according to  claim 11 , wherein the yield strength YS 0.2 >300 MPa and the elongation at failure A >5% of the aluminum alloy is achieved without additional heat treatment. 
     
     
         13 . A method for additive manufacturing of a part, comprising manufacturing the part with the aluminum allow according to  claim 1 . 
     
     
         14 . The aluminum alloy according to  claim 10 , wherein the spherical particles have an average particle size from 15 to 75 μm.

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